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A220264 as a simple table

n a(n)
0 1
1 4
2 12
3 30
4 60
5 180
6 210
7 420
8 1260
9 6300
10 2310
11 4620
12 13860
13 69300
14 485100
15 30030
16 60060
17 180180
18 900900
19 6306300
20 69369300
21 510510
22 1021020
23 3063060
24 15315300
25 107207100
26 1179278100
27 15330615300
28 9699690
29 19399380
30 58198140
31 290990700
32 2036934900
33 22406283900

[1,4,12,30,60,180,210,420,1260,6300,2310,4620,
 13860,69300,485100,30030,60060,180180,900900,
 6306300,69369300,510510,1021020,3063060,15315300,
 107207100,1179278100,15330615300,9699690,19399380,
 58198140,290990700,2036934900,22406283900]

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Last modified July 13 20:28 EDT 2024. Contains 374288 sequences. (Running on oeis4.)